Cisco Cisco Email Security Appliance X1050 시작 가이드

•  Enhanced email controls: Highly secure messaging provides new 

email controls for users. Encrypted emails help ensure that the 
information sent remains confidential. The sender can also expire or 
recall an email and know exactly when the email was opened. This 
capability is now available on popular enterprise mail clients. The 
specific features are described below.

•  Read receipt: When a recipient opens a message (meaning the 

user is successfully authenticated, and the recipient has received 
the encryption key), Cisco delivers a read receipt to the sender 
within seconds.

•  Guaranteed message recall: When the sender selects the recall 

option, the key to decrypt the data expires, making it impossible for 
anybody to access the content of the message.

•  Message expiration: The sender can set an expiration date to the 

message. After the expiration date has passed, the encryption key 
will be disposed of, making the information inaccessible.

• 

Control over forward and reply functions: The sender can take 

advantage of advanced controls over what can be done to an email 

message once it has been received. Forward, Reply, and Reply All 

can be disabled entirely, or enabled only if the sender’s company 
authorizes it.

Figure 1. Cisco Envelope Encryption—Easy for Sender

The solution is available in two formats:

•  Desktop plug-in: Provides desktop encryption capabilities that are 

integrated into our new plug-in platform.

• 

Business Class Email Mobile app: Provides mobile encryption 

capabilities for your smartphone or tablet. With this dedicated solution 

for highly secure envelope encryption, smartphone users can encrypt 

and decrypt messages from their handheld devices.

At-a-Glance

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Cisco® Email Security Appliance

Sender Controls

Recipient

Message 

Key